May 4, 2009

Oberndorf has witnessed a large number of devastating floods during the last centuries. The first record of a bridge being washed away dates back to 1316. The damage was often caused by flotsam which was caught between the wooden bridge pylons and forced the water to dam up. Ultimately the bridges were often just washed away. During the last decade of the 19th century four floods cased great damage, and a decision was made to relocate the town to a more elevated plateau.

The Bavarian Laufen and Austrian Oberndorf developed the plan to construct a stable bridge made of stone and iron incorporating a greater span. As the bridge was in close proximity to both the old town square of Laufen and the new centre of Oberndort, an aesthetic design was implemented.

The two-pylon construction had three apertures, the largest of which was on the Austrian side to allow for shipping needs. The construction was made of 648 tonnes of Martin River iron ore, with a chain-like curved upper cable and a straight lower cable. The facing of the pillars and decorative elements required an additional 67 tonnes of material to ensure a pleasing design. Eagles with spread wings were placed upon the bridge portals, adding to the elegant impression of the construction. The bridge was inaugurated on the 2nd of June 1903 in a collective festival of inhabitants from Laufen and Oberndorf.

May 1, 2009

Fifty years since its opening, Auckland Harbour Bridge is an icon of New Zealand’s landscape. Replacing a 40-kilometre drive or a cross harbour ferry ride, it’s been key to growth in the region – transforming North Shore’s seaside villages and rural communities into a thriving city, and opening Auckland City and points north and south to previously unimaginable opportunities for expansion and development.

Join us in celebrating the anniversary of this remarkable structure’s opening, with four gummed stamps, one self-adhesive stamp and a first day cover that are bound to be snapped up by Kiwis and international collectors alike.

50c – Opening Day 1959On 30 May 1959, Governor-General Lord Cobham officially opened the box truss bridge after a week of celebrations that included a crossing by thousands of pedestrians before it was opened to vehicles. Retailers prepared for the event with ‘bridge specials’ and competitions, while parades, fashion shows and dances were held to welcome the new landmark.

$1.00 – Our Bridge 2009By the late 1960s it was apparent that the Bridge would soon reach its capacity. To cope with the growth in traffic volumes, Japanese company IHI clipped two new lanes to each side of the bridge using the existing pier supports. The work was completed in 1969, with the only major maintenance required since being a girder strengthening project in 2006.

$1.50 – Our Icon 1961From the day it opened until 1984, Auckland Harbour Bridge was a toll road, charging 25 cents per car with the aim of recovering the costsof construction. After one year of operation, 4.9 million vehicles had crossed the bridge, a figure that increased to 10.6 million in 1966 and reached more than 60 million in 2008. To help manage the traffic flow, the world’s first ‘moveable lane barrier’ was installed in 1990 – it’s now moved four times a day to create an extra lane at peak times.

$2.00 – Our Link 2009Today, the Auckland Harbour Bridge is an essential link between the North Shore and Auckland City – providing commuters, travellersand tourists with an easy, direct link to motorways stretching north and south. It’s also a visitor destination, with bridge climbing and bungy jumping experiences now on offer to those with an adventurous spirit. Care to try ‘the fastest way of getting to see Waitemata Harbour’ yourself?

About me

Classifications

A bridge is a structure built to span a gorge, valley, road, railroad track, river, body of water, or any other physical obstacle, for the purpose of providing passage over the obstacle. Designs of bridges will vary depending on the function of the bridge and the nature of the terrain where the bridge is to be constructed.

A viaduct is a structure sometimes considerable, composed of arches or spans many and raised, sometimes on several stages of vaults, and intended to cross great spaces, valleys, large ravines etc.

An aqueduct (occasionally water bridge) applies to any bridge or viaduct that transports water - instead of a path, road or railway - across a gap.

A culvert is a very small arch bridge of less 6m of opening, comprising only two supports and usually built on a small ravine, a brook etc.